KryptonPlus ⚡

KryptonPlus is a modernized, drop-in network stack optimization mod for modern Fabric Minecraft, based on PaperMC's Velocity networking innovations.

It completely rewrites Minecraft's packet encryption and compression pipelines with zero-leak native memory management, delivering maximum network throughput, lower server/client CPU usage, and ultra-low ping spikes.

✨ Key Features & Improvements

• 🚀 Velocity Native Pipeline: High-performance libdeflate compression and native AES encryption for lightning-fast packet handling.
• 🔄 Full ViaFabricPlus Compatibility: Intelligently handles multi-version byte streams, packet length shifts, and dynamic Netty pipeline injections without crashes or disconnects.
• 🛡️ Zero-Conflict Coexistence:
  • Designed to work alongside e4mc without conflicting login/cipher redirections.
  • Dynamically respects PacketFixer packet limits without crashing on large payloads.
  • Compatible with ResourceTrimmer, TT20, and Eunomia.
• 🧹 Instant Memory Cleanup: Unused native buffers and compression decoders are cleanly dereferenced as soon as network channels close.
• ☕ Java 27 Ready: Built and tested with modern Java runtimes (Java 21, 25, 27).

📦 Compatibility & Environment

• Mod Loader: Fabric
• Minecraft Version: 26.3+
• Environment: Client & Server (Works in Singleplayer, Multiplayer, and Dedicated Servers)
• License: LGPL-3.0